Here’s a first: a tiny robot composed of one vibrating motor, toothbrush, and watch battery. If you’ve got the parts and 1-2 to spare, this would be an interesting project to say the least. Video after the break. Click here for first picture in gallery.

When you set one down, you may notice that it tends to steer left or right. We have found that battery and motor placement, bristle shape (one stray long bristle can interfere with the motion, and motor rotation direction all influence the behavior- so be sure to try flipping the battery upside down if you have trouble getting yours to go straight

[via GizmodoEVMS]

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